Class 9th Science Session 2022-23 Class 9 Science Terminal Exams MCQ Solutions Class IX Science MCQ Extra Questions Answers 9th Science Terminal Exam Based MCQ Extra Questions

Purkinje is 1839 coined the term ‘protoplasm’ for the fluid substance of the cell.

Cells of intercalary meristems are very active, they have dense cytoplasm, thin cellulose walls and prominent nuclei. They lack vacuoles.

The metal present in quicklime is calcium. The chemical formula of quicklime or calcium oxide CaO.

Sodium chloride is a pure substance because it has fixed composition(1:1) and other given options are mixture.